import sys
def input():
    return sys.stdin.readline()[:-1]


def main():
    X = int(input())
    if X >= 1800:
        print(1)
    elif X >= 1600:
        print(2)
    elif X >= 1400:
        print(3)
    elif X >= 1200:
        print(4)
    elif X >= 1000:
        print(5)
    elif X >= 800:
        print(6)
    elif X >= 600:
        print(7)
    else:
        print(8)           
    
if __name__ == "__main__":
    main() import sys sys def input():
    return sys.stdin.readline()[:-1] input return sys.stdin.readline()[:-1] sys.stdin.readline()[:-1] sys.stdin.readline() sys.stdin.readline sys.stdin sys stdin readline :-1 -1 def main():
    X = int(input())
    if X >= 1800:
        print(1)
    elif X >= 1600:
        print(2)
    elif X >= 1400:
        print(3)
    elif X >= 1200:
        print(4)
    elif X >= 1000:
        print(5)
    elif X >= 800:
        print(6)
    elif X >= 600:
        print(7)
    else:
        print(8)           
     main X = int(input()) X int(input()) int input() input if X >= 1800:
        print(1)
    elif X >= 1600:
        print(2)
    elif X >= 1400:
        print(3)
    elif X >= 1200:
        print(4)
    elif X >= 1000:
        print(5)
    elif X >= 800:
        print(6)
    elif X >= 600:
        print(7)
    else:
        print(8)           
     X >= 1800 X 1800 print(1) print 1 elif X >= 1600:
        print(2)
     X >= 1600 X 1600 print(2) print 2 elif X >= 1400:
        print(3)
     X >= 1400 X 1400 print(3) print 3 elif X >= 1200:
        print(4)
     X >= 1200 X 1200 print(4) print 4 elif X >= 1000:
        print(5)
     X >= 1000 X 1000 print(5) print 5 elif X >= 800:
        print(6)
     X >= 800 X 800 print(6) print 6 elif X >= 600:
        print(7)
     X >= 600 X 600 print(7) print 7 print(8) print 8 if __name__ == "__main__":
    main() __name__ == "__main__" __name__ "__main__" main() main def main():
    X = int(input())
    if X >= 1800:
        print(1)
    elif X >= 1600:
        print(2)
    elif X >= 1400:
        print(3)
    elif X >= 1200:
        print(4)
    elif X >= 1000:
        print(5)
    elif X >= 800:
        print(6)
    elif X >= 600:
        print(7)
    else:
        print(8)           
     def main():
    X = int(input())
    if X >= 1800:
        print(1)
    elif X >= 1600:
        print(2)
    elif X >= 1400:
        print(3)
    elif X >= 1200:
        print(4)
    elif X >= 1000:
        print(5)
    elif X >= 800:
        print(6)
    elif X >= 600:
        print(7)
    else:
        print(8)           
     main def input():
    return sys.stdin.readline()[:-1] def input():
    return sys.stdin.readline()[:-1] input
import sys
def input():
    return sys.stdin.readline()[:-1]


def main():
    X = int(input())
    if X >= 1800:
        print(1)
    elif X >= 1600:
        print(2)
    elif X >= 1400:
        print(3)
    elif X >= 1200:
        print(4)
    elif X >= 1000:
        print(5)
    elif X >= 800:
        print(6)
    elif X >= 600:
        print(7)
    else:
        print(8)           
    
if __name__ == "__main__":
    main()
